I installed Inline for NT 4.0 using the ActiceState ppd. It can not find the standard include files. config.pm contains the correct path: incpath='D:\PROGRA~1\MICROS~2\VC98\include' D:\Perl\lib\CORE\perl.h(426) : fatal error C1083: Cannot open include file: 'sys/types.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. What am I doing wrong ? Tim